Press-head.



C. NAEGELEN. PRESS HEAD. APPLICATION FLED PEB. 25, 1911.

i llulllnnllll mln: I

f m A l l Hmmm l U i [WT my rf/ 7!` A 15,5. to cease.` instantly, to permit thepress-head miran santas Param operon.

. `CHARLES NAEGELEN, OF CINCINNATI, OHIO, ASSIGNOR TO THE CINCINNATI BUTCHERS .SUPPLY COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO. p

ranssnnnn.

Speoiication of Letters latent.

Patented Aug.' 2o, i911.

Application filed )February 25,. 1911. Serial No. 610,791.

. YTo ally whom it may concern.'

Be it known that LCHARLES NAEGELEN, a4 lcitizen ofthe` United States, and residing at Cincinnati, Hamilton county, State of Ohio, fhave invented certain new and useful Improvements in Pressdsleads; and I do declare lthe following to be a clear, full, and

i exactdescription of the invention, attention being called to thevdrawingI which` accomv'panics this application and forms apart thereof. I

" This inventiontrelates to improvements in the construction ofpress-heads, they being `Vmovable machine-'elements actuated by Huid- A.pressure and used to compact plastic mat-ter and to expel the samefrom an inclosure and 'through Aan outletoriiicetherein whereby it 'is forced to assume a certain shape.

Theinvention is described in connection with sausage-staffers, being devices which consist of a cylindrical inclosure adapted to contain meat-dough and a press-head movably ttedl into this cylinder and adapted,

when moving toward one end of the same, 'to eXpel the meat dough, an outlet orifice being provided thereat through which the meat dough discharges in compacted consistency and proper shape suitable to be received by the sausage casings.

'7 which may be Water or air, also steam if not The press-head is moved by fluid-pressure otherwise objectionable, and .which is admitted to act against one side of the presshead. This latter -is single-acting, that is tosay, it expelsmatter only while moving inv one direction, after which, when theini closure is empty, it returns to its initial hind andalso to prevent escape of the pres- `position while anew charge is supplied.

It islessential that the press-head is tightly `fitted into its inclosure to prevent ay of the 'matter moved by it from remaining be- 'f' sure-medium, which moves the head, past it to its original position.

and into the matter on the other side. It is also essentiahafter the press-head 'has emptied the inclosure and the imp ellingpressure is relieved, that it returns freely and quickly Packing is pr0- `vided which is adjusted automatically t' these conditions and caused to be forcee into close Contact with 'the wall of the inlclosure; when vthe press-head moves under. pressure while thereafter, when this pressure is relieved, this forced contact isfcaused y t-he same securely to return freely to its normal position. The y low positions. Fig. 4, shows at reduced scale the general appearance of such a stuiler.

Theinclosure of the sausage-stutter consists'of the cylindei` A, the permanently connected lower head B and the top C, which is in form of a removably connected lid which permits access for charging the cylinder. Locking means are provided to hold in position to complete the inclosure. This lid contains an outlet opening which is of a size and shape to suit the purpose, the same being the case with the discharge nozzle c provided in conned tion with this opening. i

D is the press-head fitted vto the cylinder and adapted to move through the same from an initial position in its lower part toward the top thereof whereby the contents of the cylinder above the pressehead are compacted and expelled through nozzle c. Air or-water under pressure are preferable mediums to move the press-head, being admitted through a pipe a. A tight fit of the. press-head against the inside ofthe cylinder-wall is es; sentia-l to prevent any ofthe matter to` be left behind and also to' prevent the pressure medium from leaking 'past the head Where it would mingle with; the matter in the cylinder.` Annuler packingd is provided around the press-head for this purpose. It

is also desirable thatthe head returns freely to its normal position when the pressure,

back of the same is relieved after ithas done its work` and arrived in its high position.'

Since packing. fitted as tight against the -cylinder-wall as required for'the purpose, to

be pressure-proof and' to prevent leakage, wouidobviolisly interfere with a prompt return, ofthe head' Vtoits low position, pro

vision is lmade whereby the degree of contact of the packing withthe cylinder-wall `is ren `dered variable,vthe` operationof the meansV io's used/forA this purpose being so that when the Aheadimov'esunder pressure, said packing dv expanding and contractii'ig'movement.

is forced in hard contact with the cylinderwall, whereas thereafter, as soon as the pressure is taken off, the intensity ot this contact is abruptly reduced, thereby permitting the head to drop instantly to its low position. For such p urpose the packing is backed b y a wedge-ring G provided behind it, said ring. being split to permit it to expand and to contract. The arrangement is so that when pressure is applied against the head, said ring is caused to thereby forcing the packing hard against the cylinder-wall. Return ot the ring to normal condition, after the pressure Vagainst the head is relieved, produces the opposite effect with respect to the packing. In order to obtain this action ot the wedged-ing, the head is made of -two parts or sections of which one is in the nature of a follower with respect to thc other one and held to it by a connection which permits 4these seetions to move apart to a certain limited exten". The wedge-ring is held to one of these sections and adapted to co-act with the other one in a manner that when the sections ap proach each other, the ring is caused to eX- pand, whereas when the sections move apart, the ring permitted to contract. These sect-ions are indicated in the drawing by numerals 7 and 8 and as shown the wedge-ring is connected to the upper oneof these sections. .This connection of the ring is of a character which does not interfere with its Suitable means are provided. vfor the purpose in the forni ofclips 9 on the iinderside ot section 7 which extend into a groove ll0 on the inside of the wedge-ring. The innerside of the wedge-ring istiaring as shown at 1.1. The upper portion ot' section 8 is reduced in diameter and occupies the interiorro't' the ring, its outside being tapered as shown at 1Q and complementary to the llaring inner side of' the ring. A bolt 13 is used to hold the sections to each other, it being rigidly seated in one section aid in lloose engagement with the other one as best shown in the drawing. The position otthe head ofthe boltv limitsthe distance which the sections may move apart which movement need not be very extensive and than necessary for the purpose that is merely suiiicient to break the contact between the opposite lsurfaces 11 and 12. The bolt may also be used to adjust the proper extent ot this movement, access purpose being made possible by removing a `smew-plug 14; which closes a pocket 'l5 occupied by said head.

Fig. 2, showsthc head in an intermediate position and its parts as tti/.y appear when it moves under pressure from one end ot the cylinder to the other. rthe conical part of the lower section is pusled into the wedgering and by expanding the same forces the expand,

should not be more to its head torsuclr packing` tightly against the cylinder-wall; Then the pressure is taken ott' at the end ot the movement, t-he two sections ot the head are 'tree to separate, thereby breaking tlreeontact between the lower section and theV wedge-ring which immediately shrinks toV its normal size. This causes thevpaeking to loose pressure-contact with the cylinderwall and permits the head to drop freely back to its initial position as shown in Fig. 3.. Prompt separationot the sections may be favored by making the lower one quite bulky and heavy as shown in the drawing. This does not necessarily insure positive or quick action however and therefore I use springpressure to bring about a prompt break of contact between surfaces 1l and 12. One spring in the center, or a number of them arranged as shown at 16 may be used. These springs continue also to hold the sections apart after the head has arrived in its low position asa shown in Fig. 3. An advantage'of this condition is that the packing commences to set against the cylinder-wall as soon as the weight oit the charge depresses the upper section and betoreitlie pressure-medium is admitted against the underside of the head. lVhen finally this admission takes place, a tight-set packing precludes possibility of leakage.

Removal of the head from the cylinder. may become necessary Jfor any purpose, cleaning of the cylinder, re airs, etc.` The pi.'essuremedium is 'used to ift-it to a position shown in Fig. 1, where it, may be conveniently reached and urtherhandled. To guard against accidentsv during Itl'iis manipulation, as -for instance by a possible blowout of the head, ports 17 are provided in torni of a number of grooves which open the cylinder to the outside bei'ore thehead is out of the same, the reduced pressure pre- 'venting furthermovement of the head.

To hold the packing to the head, particularly when the latter is out of the cylinder as shown in Fig. 1, I provide flanges 18 on the opposite inner edges of the sections which are adapted to engage the packing at its edges and retain the same in posit-ion.

l0 is a washer to prevent leakage through the upper section of the head of any mattei' which might possibly escape into the head at the edges ot' the packing.

Having described my invention,

I claim as new 'llt l. Inv a press-head, the combination o anl nular packing, a split Wedge-ring back of the same, a press-head-section to Which this wedge-ring is connected, another presshead-section fitted into this ring and adapted to spread it wardl y and means which under normal conditions prevent this pressdieadfsection and this wedge-ring from moving with respect to each other.

to force the packing outadapted to 3o-net with i2. In u press-heeid7 the combination of two yieldinglyspaced sections, means whereby they are positively prevented from moving apart beyond n fixed distance a split wedge-ring' connected so osito more with one section and fitted around the other seetion and packing provided around the wedge-ring and adapted to be forced outwardly when the two sections approach each other.

3. l i :i press-heath the combination of an upper :1nd of :i lower section having nuirginul flanges extending toward each other. means ii'herehy they are inorably held to eneh other `with space between them, o' peeking-ring between these see Lons and engug'ed at its edges by the iisnges on these sections, a. split wedge-ring Carried-by one of the sections and hack of this packing and the other section for the purpose of expandingthe peeking and means which prevent this action under norinnl eonditions.

41T. A presshead provided on its underside with s split wedgering, peeking fitted around this ring, a follower held to thie presshead with a spacebet-ween the two, springs between the two which hold them apart under normal conditions but permit the follower and the split ring to Gonot when under pressure for the, purpose of eX- pending the packing.

5. A pressdiead consisting of two seotions yinldingly connected to each other with :t space between them, expansible peeking i provided between these sectionsend ports provided on the outside of the lower section for the purpose described.

6, A cylindrical press-hez1d provided on its annuzir side with port-s whichv extend in wardly from one of the edges of said side und terminate oetween the edges thereof.

In testimony whereof, I hereunto my' signeture'in the presence of two Witnesses. CHARLES NAEGELEN.

Witnesses: 1

SPENGEL, T. Ln BEAU. 

